Reviews: Porter-Cable PC750AG 7.5 AMP SMALL ANGLE GRINDER

http://www.ereplacementparts.com/porter-cable-pc750ag-type-amp-small-angle-grinder-parts-c-129_1811_16568.html
(wondering if the bearing shouldn’t just be lubed or replaced)
I had a Ryobi 5 amp last me about six or seven years. I do sporadic fabrication, welding and kart restoration; and use it heavily when I do, but then not for months or even years in between. The Ryobi (HmDepot, $40) blew up yesterday, blasted a pinhole in the case w/ a tiny fire blowing thru (burnt winding.)
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seems like I had my share of disappointing experiences with tools last couple of weeks, but I guess a bad review is more valuable than a good one as it can save the agony of others. so here goes:
I had a dewalt cordless grinder for years, and although I have very limited use for it, I find it very valuable, since when the time comes – there’s nothing else that can do that job as good. unfortunately my 18v batteries all died on me, and currently there is no justification to spen...